Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 8

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Norway maple

Sortuj według:

Ogranicz wyniki do:

Activity of ATPases during dormancy breaking in Norway maple [Acer platanoides L.] seeds

100%

Krawiarz K. , Szczotka Z.

Acta Societatis Botanicorum Poloniae

2000

tom 69

nr 2

Development of the leaf blades of Acer platanoides in industrially contaminated environment

63%

Dineva S. B.

2006

tom 55

25-32

Leaf blades of Norway maple (Acer platanoides L.), growing in heavily polluted industrial area have been studied for anatomical changes developed under the influence of the industrial contamination (with SO2, NxOx, Pb, As). The aim of the examination was to reveal the dynamics in the development of leaf blades and to trace the impact of the contaminated air on the leaf structure of Norway maple. The conducted study registered acceleration of the vegetative growth of the leaf blades that is manifested through approximately two weeks earlier appearance of leaves on the tree, faster linear growth and strengthened the xeromorphic traits in the leaf structure of the tree plants from the contaminated region. The observed changes are regarded as adaptation of the plant to the polluted environment, i.e. as tolerance.

Qualitative changes in the proteins of cotyledons during cold and warm stratification of Acer platanoides seeds

63%

Pawlowski T. , Szczotka Z.

tom 70

nr 1

Functional analysis of ABI5 and RGL2 in dormancy breaking of Acer platanoides L. seeds

51%

Staszak A. , Guzicka M. , Maslowska S. , Pawlowski T. A.

nr 3

Influence of the environmental pollution on the content of extractives and mineral substances in bark and wood trunk and branches of Norway maple (Acer platanoides L.)

51%

Krutul D. , Zielenkiewicz T. , Zawadzki J. , Radomski A. , Antczak A. , Kupczyk M. , Drozdzek M.

2012

tom 78

Changes in abscisic acid levels in embryo axes of Norway maple and sycamore seeds during maturation and dehydration

51%

Pukacka S. , Gawronska H.

nr 2

Loss of tolerance to desiccation in germinated Norway maple (Acer platanoides L.) seeds. Changes in carbohydrate content

51%

Pukacka S.

Dendrobiology

2001

tom 46

Carbohydrates were analyzed in Norway maple embryo axes and cotyledons after imbibition, in the middle of cold stratification, before germination and during radicle protrusion to 8-10 mm and 20-25 mm. Simultaneously desiccation tolerance of seeds was determined by tetrazolium (TTC) test, after desiccation of seeds to 10-20% of water content. The cotyledons were tolerant to desiccation throughout all stratification and germination period. Embryo axes became sensitive to desiccation when hypocotyls-radicle protrusion reached 20-25 mm length. In this period the significant increase of monosaccharides: glucose, fructose and galactose in embryo axes occurred. This was not observed in cotyledons. During the germination period significant decrease of sucrose and raffinose content was noted in embryo axes and cotyledons. Relatively less changes appeared in stachyose content in embryo axes while in cotyledons it decreased evidently. The mass ratio of sucrose to oligosaccharides was higher in cotyledons of germinated seeds. The marked decrease of mass ratio of oligo to monosaccharides was observed in embryo axes in the last period of germination. The role of carbohydrates in loosing tolerance to desiccation in germinated Norway maple seeds is discussed.

Qualitative and quantitative changes in proteins in Acer platanoides L. seeds during maturation

51%

Pawlowski T. , Kalinowski A.

nr 2

Maturation of Norway maple (Acer platanoides L.) seeds produces deep physiological dormancy and resistance to desiccation. This study used two-dimensional electrophoresis to investigate the protein products of genes activated during the complex developmental process of maturation. Qualitative and quantitative changes in protein composition during maturation were tracked in this species. The most intensive changes in protein content appeared at the end of seed maturation, in embryo axes and cotyledons. During this time their protein content increased significantly and new proteins appeared. Presumably the proteins Q (15 kDa, pI 8) and X (16 kDa, pI 5) separated from cotyledons are associated with maturation of seeds.